Improvement in clamp for holding staves



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EDMUND Doi-intrus, or noNDonT, New Yoan.

Letters Patent No. 98,574, dated January 4, 1870.

' IMPROVEMENT IN CLAMP FCR HOLDING- STA'VES.

The Schedule referred to in these Lettera Patent and making part of the same.

To all whom it may concern.-

Be it known that I, EDMUND DOREMUs, of Rondont, in the count-y of Ulster, and State of New York, have invented anew and improved Barrel-stave Clamp and I do hereby declare that the following is` a full, clear, and exact description thereof, which will enable others skilled in the art to make and use t-he`same, reference being had to the accompanying drawings, forming part of this specication, in which Figure l` represents a plan or top view ot' my irnproved barrel-stave clamp.

Figure 2 is a vertical transverse section of the same, taken on the plane of the line a: x, fig. 1.

Figure 3 is a detail vertical transverse section of the same, showing the parts in a different position. Similar letters of reference indicate corresponding parts. i

This invention relates to a new device for holding barrel-staves while the same are being cnt for jointing, and has for its object to make the apparatus adj nstable for barrels of variousv shapes and sizes.

The invention consists, `first, in the general arrangement and combination of a sliding pivoted follower, with a pivoted/clamp; secondly, in providing double joints for the follower-to allow it to swing in eitherV position; thirdly, in making the pivots of the clamp vertically adjustable, to regulate the slant of the jointed edge; and, finally, in the use of fixed guards, by means of which the stave to be jointedcan be secured `true in the clamp.

A, in the drawing, represents the circular or annularI cutter, of which only a portion is shown in the drawmg. y

It is, preferably, in form of a ring, carrying a series of planing-knives, a a, transversely on its surface, and is'mounted upon a vertical or horizontal shaft, not shown, and revolved bythe same.

B is a stationary frame, within which the cutter works. i

The frame. has two parallelside-bars, b b, which are, infront, connected by a front bar, c, as shown.

C is the clamp. It is a curved plate, having about the form of the stave to be cnt, and has its ends secured to projecting arms d d, as shown.

The ends of the arrns'cl` are, by pins e e, pivoted to the side-bars b, of the frame B.

The arms d are also connected with each other, in rear of the plateC,'by a straight bar, f.

Through this arm `are fitted transverse bars g g, which project backward from the follower-clamp D,

which is a curved plate, shorter than C, and arranged s o that it can be held against the innerside of the same. One of the arms g, preferably the middle one of three, is, at the inner end, pivoted, by a pin, h, to a link, t', which is again pivoted, by a pin, j, to a sliding bar, E, that works horizontally on the bed of the frame B, as shown.

The sta-ve to be jointed is inserted between the plate and the follower I), when the latter is drawn hack, as in fig. 3, and its upper edge brought against stationary guards l, that project backward from the front bar o,

so that thereby the stave will be held true.

The follower is Vthen moved forward to clamp the 'stave against the plate C.

The clamp is then graduallyforced down to hold the lower edge of the stave against the cutter. Thel angle at which the lower edge is planed will be regulated by the higher or lower position of the pivotf pins e. The said pins are therefore made vertically adjustable in the side-bars b, of the frame B.

By the vertical adjustment of the pivots, the entire form of stave is regulated, as the inclination of the clamp is thereby varied,land more of the middle or ends consequently taken off, as may be desired.

rlhe double joint of the follower allows the clampto be swung when the follower is drawn back, as well as when it is pushed forward.

The clamp is swung up by a weight, an., or its equivalent, when not expressly held down tothe cutter.

The follower-slide can be Operated by a suitable lever E.

Having thus described my invention,

I. claim as new, and desire to secure by Letters Patent- 1. The combination of the pivoted clamp C with the pivoted` sliding follower D and frame B, all a1'- ranged on a stave-jointing machine, as specified.

2. The clamp C, pivoted to the frame B by vertically adjustable pins e, to permit various positions of the stave in the same clamp, as set fort-h.

3. The double joint h i j, arranged on the shank of thesliding follower D, substantially as and for the purpose herein shown and described.

4.' The guards l l, arranged on the fran-ie VBto permit the stavcs to be set true, as set forth.

EDMUND DOREMUS.

Witnesses:

ABM. SLIGHT, WM. WINTER. 

